Bring your favorite movie soundtracks to life with Polk's LC80fx. These versatile, high-performance surround speakers use the same sophisticated technologies that have made Polk's critically acclaimed LSi loudspeakers so successful. High-quality construction keeps the drivers in rigid alignment, and virtually eliminates sound-muddying resonance. Each speaker boasts two advanced tweeters that deliver smooth, extended highs with impressive detail. Polk engineered the woofer to provide clear, precise midrange and bass. Plus, the LC80fx installs directly in your ceiling for a clean-looking setup.

Solid/Diffuse switch for more sound control
This pair offers more placement flexibility than conventional in-ceiling speakers — you can choose from two modes to get the best-sounding surround effects in your room. "Solid" mode produces clear, directional sound that lets you pinpoint the location of certain rear-channel effects within your home theater's soundstage. "Diffuse" mode spreads the sound out, giving you broader, more enveloping surround effects.

Create a hidden home theater with the LC80fx and other LC in-ceiling speakers, plus a CSW in-wall or in-floor subwoofer. You can also can also combine the LC80fx with LSi free-standing speakers.

An optional in-ceiling bracket is recommended for installing the LC80fx in a home with new construction.

Free installation help from Crutchfield
When you buy in-wall or in-ceiling speakers from Crutchfield, you'll also receive copies of our in-depth speaker and wire installation guides, free of charge:

Click the links above to view these guides; you'll need the Adobe Acrobat PDF reader (free download).

Priced per pair

Product Highlights:

  • frequency response 45-26,000 Hz (-3dB)
  • two 3/4" Ring Radiator tweeters
  • 8" Dynamic Balance® woofer
  • handles up to 125 watts
  • sensitivity 88 dB
  • 4-ohm impedance
  • "solid" mode — directional sound, all drivers in phase (bipole)
  • "diffuse" mode — broader sound that's harder to pinpoint, one tweeter out-of-phase (dipole)
  • wall distance switch
  • paintable grilles
  • durable, moisture-resistant construction
  • cutout: 9-3/8" diameter
  • mounting depth: 4-5/8"
  • lifetime warranty

Hands-on research

What's in the box?

Download owner's manual

  • 2 In-ceiling 2-way speakers
  • 2 White aluminum grilles (paintable)
  • 2 Plastic paint masks
  • Cardboard template
  • Owner's Manual (English/ Portuguese/ German/ Italian/ Spanish/ French)
  • On-line registration card

Features and Specs

Enclosure Type In-ceiling
Video Shielded No
Tweeter Ring Radiator
Midrange Size N/A
Woofer Size 8
Woofer Composition Polypropylene
Woofer Surround Rubber
Power Range (Watts) 10-125
Sensitivity 88 dB
Impedance (Ohms) 4
Frequency Response 45-26,000Hz
Connector Type Spring posts
Bi-Amp Inputs No
Parts Warranty Lifetime
Labor Warranty Lifetime

Product Research

Mounting Options


Dynamic Balance Technology: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Angled Woofer: The LC80FX is equipped with an 8" Aerated Polypropylene woofer, loaded into the frame at a fixed 15° angle. This allows you to direct the woofer toward the listening area when used for front stage (Left, Center, or Right) speakers. When used as rear surrounds or as 6.1 or 7.1 channel surround back speakers, you can direct the driver toward the listening area for a more direct sound field, or toward a wall for a more diffuse sound field.

Dual Tweeters: Each speaker has dual 3/4" Ring Radiator tweeters for crisp, transparent highs. The ultra-light woven Ring Radiator Diaphragm delivers flat response, precise detail and overall accuracy. A High Frequency Waveguide prevents phase cancellations for smooth, uniform frequency response and wide dispersion. A Low Frequency Waveguide promotes laminar airflow between chambers to prevent air turbulence. This feature serves the same function as Power Port for Polk's bass systems. The tweeters are angled 90° away from each other.

Timbre-matched: The speaker is timbre-matched to the Polk Audio LCi Series for seamless, enveloping imaging when used in a home theater system. You can mix and match any of the LCi-series in-wall and in-ceiling speakers with the LCi Series high performance floor-standing and bookshelf speakers.

Terminals: The speaker features gold-plated spring post terminals.

Wiring Recommendations: The gauge of the speaker wire used to connect this speaker depends upon the length of the run:

  • Lengths of up to 25': 18 or 16 gauge
  • Lengths between 25' to 50': 16 or 14 gauge
  • Lengths between 50' and 75': 14 or 12 gauge
  • Lengths of over 75': 12 gauge


Imaging Switch: The LC80FX offers switchable "Solid" and "Diffuse" imaging patterns to create the surround effect you desire. A "Diffuse" image is defined as one which creates a "cloud" of sound, as ambient sounds fill the environment around the listening area. A "Solid" image is one which creates a more directional, localized, pin-point sound.

Wall Distance Switch: It is recommended that the speaker be placed more than 2' from a side wall. If position limitations demand than they be installed less than 2' from a side wall, the proximity of the surface can result in a response "bump" between 50Hz and 200Hz, causing the speaker to sound "boomy." The Wall Distance switch flattens response and tunes out the "boominess" without sacrificing deep bass response.

Mounting Options

Installation: The speaker requires a cutout diameter of 9-3/8" with a depth of 4-5/8" assuming 1/2" drywall. Once the hole is cut, the speaker can be held in place and the Rotating Cams can be tightened, allowing you to secure the speaker to the drywall without any extra assembly. If you will not be mounting the speaker in drywall, make sure the wall or ceiling material can safely support the weight of the speaker before installation; the speaker weighs approximately 4 pounds.

Paintable: The grille and flange can be painted, allowing the speaker to match any décor. A clear plastic paint mask is included to protect the "unpaintable" speaker parts.


Frequency Response:

  • Overall: 30 Hz-27 kHz
  • +/-3 dB Limit: 45 Hz-26 kHz

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Get everything you’ll need to enjoy your new Polk Audio LC80fx

UL-listed speaker wire is designed to be run through walls and is building code compliant. Most speakers don't include speaker wire.
Set the volume level in your remote location without going back and forth from room to room.
Use special hardware to give your speakers a sturdy and professional looking installation.
Have your speakers installed by qualified professionals.
A speaker selector will let you control multiple pairs of speakers from a single location.
AudioQuest FLX-16/2 16-Gauge 2-Conductor In-Wall Speaker Cable

AudioQuest FLX-16/2 16-Gauge 2-Conductor In-Wall Speaker Cable

UL-approved for in-wall use; direct-burial rated (125 feet)

Item #: 703162125


Add to Cart
AudioQuest FLX-14/2 14-Gauge 2-Conductor In-Wall Speaker Cable

AudioQuest FLX-14/2 14-Gauge 2-Conductor In-Wall Speaker Cable

UL-approved for in-wall use; direct-burial rated (125 feet)

Item #: 703142125


Add to Cart
AudioQuest FLX-16/4 16-Gauge 4-Conductor In-Wall Speaker Cable

AudioQuest FLX-16/4 16-Gauge 4-Conductor In-Wall Speaker Cable

UL-approved for in-wall use; direct-burial rated (125 feet)

Item #: 703164125


Add to Cart
AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable

AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable

UL-approved for in-wall use; direct-burial rated (125 feet)

Item #: 703144125


Add to Cart
Niles VCS100K

Niles VCS100K

Stereo volume control with impedance magnification

Item #: 190VCS100K


Add to Cart
Polk Audio PB LC80

Polk Audio PB LC80

Pre-construction brackets for Polk 8" round in-ceiling speakers

Item #: 107PBLC80I


Add to Cart
Russound Flexbox

Russound Flexbox

For in-ceiling speakers

Item #: 543CEILBOX

Add to Cart
Niles SSVC-4

Niles SSVC-4

4-pair speaker selector with volume control

Item #: 190SSVC4


Add to Cart
Niles SS-4

Niles SS-4

4-pair speaker selector

Item #: 190SS4


Add to Cart